Power Substation

  • SZ11-33kV Series Power Transformer
  • SZ11-33kV Series Power Transformer

SZ11-33kV Series Power Transformer

33kV Series Power Transformer

Product Features

1.These types of power distribution transformers have High Efficiency, Low Loss, Low Noise Characters

2. Good Inside Heat Emission, High Anti Short Circuit, Safe And Reliable

3. Empty, Load Loss Is Low

4. Reliable, long service life, free maintenance.

Transformer Standards

GB 1094.1-1996 GB 1094.2-1996

GB 1094.3-2003 GB/T 7595-2008

GB/T 6451-2008 JB/T 3837-2010

Transformer Special Service Conditions

1. The height above sea level is above 1000m
2. Ambient temperature
3. Highest air temperature is above 40°C
4. Lowest air temperature Lower than 45°C (defines in detail when placing an order)

Transformer Normal Service Conditions
1 The height above the sea level is below 1000m

2 Ambient temperature:
Highest air temperature +40°C
Highest daily average air temperature+30°C

Highest annual average air temperature +20°C

Lowest outdoor air temperature -25°C

Transformer Model Description

types of power distribution transformers manufacturers

S11 Series 33kV Distributtion Transformer
50KVA-1600KVA 3-Phase Duplex Winding Off-load Tap-Changing Distribution Transformer

Rated capacity
(kVA)
Voltage Combination and Tap rangevector Group
Symbo
No-load loss
(kW)
Load loss
(kW)
No-load
current %
Short-circuit
Impedance
Voltage %
HV (kVHVTap RangeLV (kV)
5035±50.4Dyn11
Yyno
0.171.21/1.152.006.5
1000.232.01/1.921.80
1250.272.38/2.261.70
1600.292.82/2.691.60
2000.343.33/3.161.50
2500.413.95/3.761.40
3150.494.76/4.531.40
4000.585.75/5.471.30
5000.696.92/6.581.20
6300.837.871.10
8000.989.411.00
10001.1511.541.00
12501.4113.940.90
16001.7016.670.80

Note
1. Rated capacity 500KVA and below transformer, the load loss above the oblique line in the table applies to Dyn11 or Yzn11; the load loss below the oblique line applies to Yyn0.
2. According to requirements, this 33kv transformer can supply HV tap change ± 2x 2.5%.

630KVA-31500KVA Triple Phase Duplex Winding Non Off-load Regulating Power Transformer

Rated    capacity
kVA)
Voltage Combination and
Tap Range
Vector
group
Symbol
No-load loss
(kW)
Load loss
(kW)
No-load
current %
Short-circuit
mpedance Voltage
%
HV
(kV)
HV Tap Range
%
LV
(kV)
63035±53.15
6.3
10.5
YNd11837.871.106.5
8000.989.411.00
10001.1511.541.00
12501.4113.940.90
16001.7016.670.80
20002.1818.380.70
25002.5619.670.60
315035~38.5±53.15
6.3
10.5
3.0423.090.567.0
40003.6227.360.56
50004.3231.380.48
63005.2535.060.487.5
800035~38.5±2X253.15
3.3
6.3
6.6
10.5
11
YNd117.2038.480.42
100008.7045.320.42
1250010.0853.870.408.0
1600012.1665.840.40
2000014.4079.520.40
2500017.0294.050.32
3150020.22112.860.32

SZ11 Series 33kV Power Transformer
2000KVA-20000KVA 3-Phase Duplex Winding Off-load Tap-Changing Power Transformer

Rated capacity
(kVA)
Voltage Combination and
Tap Range
Vector
group
Symbo
No-load loss
(kW)
Load loss
(kW)
No-load
current %
Short-circuit
Impedance Voltage
%
HV
(kV)
HV Tap Range
%
LV
(kV)
200035±3X2.56.3
10.5
Yd112.3019.240.806.5
25002.7220.640.80
315035~38.5±3X2.56.3
10.5
3.2324.710.727.0
40003.8729.160.72
50004.6434.200.68
63005.6336.770.687.5
800035~38.5±3X2.56.3
6.6
10.5
11
YNd117.8740.610.60
100009.2848.050.60
1250010.9456.860.568.0
1600013.1770.320.54
2000015.5782.780.54
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